共 30 条
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- [3] Profitability of kale and tomato production under different soil fertility replenishment technologies in Western Kenya JOURNAL OF SUSTAINABLE AGRICULTURE, 2006, 29 (03): : 135 - 148
- [6] Adoption of improved fallow technology for soil fertility management in Zambia: Empirical studies and emerging issues Agroforestry Systems, 2003, 59 : 317 - 326
- [7] Alley cropping of maize with calliandra and leucaena in the subhumid highlands of Kenya: Part 2. Soil-fertility changes and maize yield Agroforestry Systems, 1999, 46 : 39 - 50